20051216

素因数分解:

$2^4\times {\mathrm{23}}^3\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 40

約数和(自身を含む): 41009280

約数和(自身を除く): 20958064

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 103, 184, 206, 368, 412, 529, 824, 1058, 1648, 2116, 2369, 4232, 4738, 8464, 9476, 12167, 18952, 24334, 37904, 48668, 54487, 97336, 108974, 194672, 217948, 435896, 871792, 1253201, 2506402, 5012804, 10025608, 20051216]

約数ペア:

[(1, 20051216), (2, 10025608), (4, 5012804), (8, 2506402), (16, 1253201), (23, 871792), (46, 435896), (92, 217948), (103, 194672), (184, 108974), (206, 97336), (368, 54487), (412, 48668), (529, 37904), (824, 24334), (1058, 18952), (1648, 12167), (2116, 9476), (2369, 8464), (4232, 4738)]